The U.S. aircraft register, updated daily
Routes and flights · the DOT's airline reports, August 2025 to July 2026

Denver International ⇄ Quad Cities International DEN–MLI

Airlines flew 735 flights between Denver International DEN in Denver, CO and Quad Cities International MLI in Moline, IL in the twelve months to July 2026, both directions together: 45,619 passengers in 52,778 seats, 86% of them filled. 751 miles, about 97 minutes in the air, on 2 airlines: SkyWest Airlines Inc. (734), Sun Country Airlines d/b/a MN Airlines (1). Planning to fly it yourself? The weather and winds along this route right now.

735
flights, twelve months
DEN-MLI: 368 · MLI-DEN: 367
45,619
passengers
86% of seats filled
751
miles
about 97 minutes airborne
2
airlines
3 aircraft types

Flights by month both directions

0163248641/254/257/2510/251/264/26597/26
By month, as a table
flights
1/2562
2/2556
3/2562
4/2560
5/2560
6/2560
7/2562
8/2562
9/2562
10/2562
11/2564
12/2563
1/2663
2/2656
3/2662
4/2660
5/2662
6/2660
7/2659

Passengers by month

01,0162,0323,0474,0631/254/257/2510/251/264/263,5437/26
By month, as a table
passengers
1/253,840
2/253,480
3/253,972
4/253,924
5/253,815
6/253,863
7/253,951
8/253,948
9/253,763
10/253,949
11/253,846
12/253,853
1/264,063
2/263,518
3/264,023
4/263,689
5/263,743
6/263,681
7/263,543

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
SkyWest Airlines Inc. OO73445,61987%scheduled passenger service
Sun Country Airlines d/b/a MN Airlines SY100%charter passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Embraer ERJ-1756447239,896
Canadair RJ-70090705,723
Boeing 737-80011860

DEN → MLI this direction alone · flown January 2025 to July 2026

368 flights of 367 scheduled, 22,191 passengers in 26,488 seats. SkyWest Airlines Inc. 367; Sun Country Airlines d/b/a MN Airlines 1.

MLI → DEN this direction alone · flown January 2025 to July 2026

367 flights of 367 scheduled, 23,428 passengers in 26,290 seats. SkyWest Airlines Inc. 367.

Source: the Bureau of Transportation Statistics' T-100 Segment table (all carriers). A flight is one departure performed on this segment; seats and passengers are the airlines' own monthly reports; "seats filled" is passengers divided by seats. The miles are the DOT's great-circle distance. Both ends: Denver International DEN and Quad Cities International MLI; all routes.